1443643144454 has 16 divisors (see below), whose sum is σ = 2483948990976. Its totient is φ = 616421161800.

The previous prime is 1443643144429. The next prime is 1443643144457. The reversal of 1443643144454 is 4544413463441.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1443643144399 and 1443643144408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443643144457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190249652 + ... + 190257239.

It is an arithmetic number, because the mean of its divisors is an integer number (155246811936).

Almost surely, 2^{1443643144454} is an apocalyptic number.

1443643144454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1443643144454 is a deficient number, since it is larger than the sum of its proper divisors (1040305846522).

1443643144454 is a wasteful number, since it uses less digits than its factorization.

1443643144454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380507171.

The product of its digits is 4423680, while the sum is 47.

The spelling of 1443643144454 in words is "one trillion, four hundred forty-three billion, six hundred forty-three million, one hundred forty-four thousand, four hundred fifty-four".